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双线背射模螺旋作馈源的背射式天线
引用本文:郝晋,马福昌,李鸿鹰,李瑞莲. 双线背射模螺旋作馈源的背射式天线[J]. 应用科学学报, 1999, 17(4): 473-475
作者姓名:郝晋  马福昌  李鸿鹰  李瑞莲
作者单位:太原理工大学
基金项目:山西省青年学科带头人基金
摘    要:提出把双线背射螺旋作为短背射天线的馈源时,可得到一种性能优良的新天线.文中给出了螺距角T=10°、12°、14°和16°时双线背射螺旋作馈源的实验结果,同时得出T=14°时天线综合性能最佳,最大增益可达19.7dB.它具有结构简单、馈电方便、遮挡小、频带宽、增益高且易于产生圆极化波等优点,性能远优于带相同接地板的螺旋天线、普通短背射天线以及单线背射螺旋作馈源的短背射天线.

关 键 词:双线背射模螺旋  馈源  天线  短背射天线  
收稿时间:1998-07-16
修稿时间:1999-01-20

A Backfire Antenna Fed by a Bifilar Backfire Mode Helix
HAO JIN MA FUCHANG LIHONGYING LIRUILIAN. A Backfire Antenna Fed by a Bifilar Backfire Mode Helix[J]. Journal of Applied Sciences, 1999, 17(4): 473-475
Authors:HAO JIN MA FUCHANG LIHONGYING LIRUILIAN
Affiliation:Department of Electronic Information Engineering, Taiyuan University of Technology, Taiyuan 030024
Abstract:A backfire antenna of good characteristics is described in this paper.It has a new feed-bifilar backfire helix.Its four situations of pitch angles T=10°,12°,14ånd 16° are measured.By comparison,the best pitch angle is 14°.The antenna has a maximum gain of 19.7dB.The new antenna has the advantages of simple structure,easy feeding and a wide frequency rang e,and circular polarized wave.The characteristics are much better than a bifilar backfire helical antenna,a short backfire antenna and a backfire antenna fed by a mono filar backfire helix.
Keywords:antenna   bifilarbackfirem ode helix   feed   shortbackfireantenna
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